org.jboss.marshalling.JDKSpecific Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* JBoss, Home of Professional Open Source.
* Copyright 2018 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.marshalling;
import static java.lang.System.getSecurityManager;
import static java.security.AccessController.doPrivileged;
import java.io.OptionalDataException;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.security.PrivilegedAction;
/**
*/
final class JDKSpecific {
private JDKSpecific() {}
static OptionalDataException createOptionalDataException(final int length) {
final OptionalDataException optionalDataException = createOptionalDataException();
optionalDataException.length = length;
return optionalDataException;
}
static OptionalDataException createOptionalDataException(final boolean eof) {
final OptionalDataException optionalDataException = createOptionalDataException();
final StackTraceElement[] stackTrace = new Throwable().getStackTrace();
final StackTraceElement[] copyStackTrace = new StackTraceElement[stackTrace.length - 1];
System.arraycopy(stackTrace, 1, copyStackTrace, 0, copyStackTrace.length);
optionalDataException.setStackTrace(copyStackTrace);
optionalDataException.eof = eof;
return optionalDataException;
}
static OptionalDataException createOptionalDataException() {
return getSecurityManager() == null ? OptionalDataExceptionCreateAction.INSTANCE.run() : doPrivileged(OptionalDataExceptionCreateAction.INSTANCE);
}
static Class getMyCaller() {
return Holder.STACK_TRACE_READER.getClassContext()[3];
}
static final class OptionalDataExceptionCreateAction implements PrivilegedAction {
static final OptionalDataExceptionCreateAction INSTANCE = new OptionalDataExceptionCreateAction();
private final Constructor constructor;
OptionalDataExceptionCreateAction() {
if (getSecurityManager() == null) {
try {
constructor = OptionalDataException.class.getDeclaredConstructor(boolean.class);
constructor.setAccessible(true);
} catch (NoSuchMethodException e) {
throw new NoSuchMethodError(e.getMessage());
}
} else {
constructor = doPrivileged(new PrivilegedAction>() {
public Constructor run() {
try {
final Constructor constructor = OptionalDataException.class.getDeclaredConstructor(boolean.class);
constructor.setAccessible(true);
return constructor;
} catch (NoSuchMethodException e) {
throw new NoSuchMethodError(e.getMessage());
}
}
});
}
}
public OptionalDataException run() {
try {
return constructor.newInstance(Boolean.FALSE);
} catch (InstantiationException e) {
throw new InstantiationError(e.getMessage());
} catch (IllegalAccessException e) {
throw new IllegalAccessError(e.getMessage());
} catch (InvocationTargetException e) {
throw new RuntimeException("Error invoking constructor", e);
}
}
}
static final class Holder {
static final Holder.StackTraceReader STACK_TRACE_READER;
static {
STACK_TRACE_READER = getSecurityManager() == null ? new Holder.StackTraceReader() : doPrivileged(new PrivilegedAction() {
public Holder.StackTraceReader run() {
return new Holder.StackTraceReader();
}
});
}
private Holder() {
}
static final class StackTraceReader extends SecurityManager {
StackTraceReader() {
}
protected Class[] getClassContext() {
return super.getClassContext();
}
}
}
}